Typewriting machine



March 14, 1933. P. go

TYPEWRITING MACHINE Filed June 8", 1926 4 Sheets-Sheet l v EET m Sm I arch M, 1933.. F. PQGORIN 1,901,,l57

TYPEWRI'I'ING MACHINE Filed June 8, 1926 4 Sheets-Sheet 2 gwuamtoz Ward M, 1933. F P em. wmm? TYPEWRITING MACHINE Filed June 8, 1926 4 Sheets-Sheet 3 March 14, 1933. F. P. GORIN TYPEWRITING MACHINE Filed June 8, 1926 4 Sheets-Sheet 4 gwuentoz Patented Mar. 14, 193

NITED STATES FRWERICK P. GORIN, F SEATTLE, WASHINGTON, ASSIGNOR TO G-OIRIN SHOCK- LESSPEED TAIBULATOR COMPANY, OF SEATTLE, WASHINGTON 'rxrnwnrrme mncnmn Application filed June 8,

This invention relates to improvements in typewriting machines and more particularly to such machines as are adapted for use in tabulating, and accounting work. The principal object of the invention is to improve the construction shown, described and claimed in my pending application Serial Number 87,699, filed February 11, 1926. The particular points of improvement in the construction are (a) that the clutch mechanismupon the motor shaft is dispensed with so that the moving of the carriage under the influence of its usual spring motor is not hampered in letter-feed direction for reasons that will be clearly pointed out hereinafter. (b) The dash pot mechanism is arranged so that when the writing head be drawn to the extreme left by the motor, the air displaced within the dash pot and the spring which returns the piston within the dash pot is fully compressed, that spring will be automatically released, leaving only the steam of the piston to be returned by a very light spring; In my former construction the carriage when returned to the extreme left by the motor of course had the force of the compressed relatively heavy spring within the dash pot ur 'ng the carnage in letterfeed direction, whic in addition to the pull of the usual spring motor of the typewriter,

caused the step by step action to be too violent, and besides this if a correction was necessary after the writing head had moved four or five letter spaces to the right and it became necessary for the operator to return the carriage in contra-letterfeed direction, it was difficult because the operator wouldbe exerting his strength in opposition not only to the usual spring drum but to the heavy spring 40 within the dash pot. (c) The usual line finding mechanism of the Elliott Fisher bookkeeping machine was found to be at times ineffective when the machine was equipped with my improved motor return because the electrical motor of course would return the writing head to the extreme left each time the current was closed and also move the carriage to the extreme rear of the frame with the result that if there wereno lines of writing upon the left hand side of the sheet to be by an improved line finder.

1926. serial 1m 114,504.

my former construction and instead thereof 00 I connect a switch which is operated whenever the foot pedals of the machine are acted upon to lower the writing bed and release the paper. (6) In ledger sheet posting especially in department store work it is a general custom to commence the writing at the extreme left hand margin of the ledger sheet, the operator usually setting down the old or existing balance. The next tabulation is generally the folio number and date which 7 usually occupy about twenty-five or thirty spaces. The next tabulation would be the item or article, etc. If there are several items to be charged under the same date, the oper-. ator would not, of course, return the carriage 7 to zero but would only return it to where the item column began at twenty-five'orthirty on the scale, and so on with as many items as Were charged on that date. In my pending construction the operator would be obliged to tabulate from zero to twenty-five or thirty on the scale in order to reach the item column. In my present construction I provide means which allows the motor to return the writing head to a selected point to begin the item 5 column, so that no tabulation is necessary. f) I bring out more clearly that the cushion of the frame and typewriter head when they be moved to the extreme rear of the typewriting stand is compressed and suflicient power stored in the cushion to start the frame and head in the opposite direction whenever the usual friction key of the Elliott Fisher typewriter be operated so that the drawing forward of thewriting head by the operator represents only a relatively small exertion.

In the drawings:

Fig. 1 is a plan View of an Elliott Fisher machine with my deviceapplied thereto.

Fig. 2 is a vertical sectional view of the line66ofFi .5.

Fig. 7 is a si e elevation. I Referring now more partlcularl tothe drawings, reference numeral A indlcates an arm bent into the form as shown in Figs. 1

and 4, its free terminal B being upwardly bent so as to freely ride over the rack teeth D whenever the carriage is moved in letter-.

feed direction. The arm is pivoted at E to a block F secured to the side of the writing head G, from which it will be seen that when the carriage is drawn forward from its position as shown in dotted lines in Fig. 1, the upper edge of the arm A will register with the lines indicated at I that have already been written on the ledger sheet H, so that to set down the old balance indicated at H2 all that the operator has to do is to see that the upper edge of the arm A is just below one of the lines I, so that when the old balance or other item be placed at the location indicated at H-2 it will be in a horizontal plane representing a corect line space distance below the lowest one of the lines indicated at I. J indicates the motor shaft, see Fig. 2, to which is secured by means of a pin K, a strap L'which is wound around the motor shaft and is passed out of a slot M in a ring N in each circular edge of which are loosely mounted discs 0. The opposite end of the strap terminates ina spring The result of this is that when the motor R returns the writing head to the banking position to begin a new line, the spring P of course is fully stretched out before the writing head started to move and when the writing head was suddenly arrested and the swltch opened so as to stop the motor, the spring P recoils in the opposite direction and jerks the strap L with it and causes a large amount of slack in the s'tra which however, occurs within the hollow dlsc represented by the ring N and side walls 0, so that that portion of the strap indicated at S (see Fig. 3) is comparatively straight.

T indicates the usual foot pedals which when aQtuated cause the writlng bed U to descend a short distance so as to allow the operator to remove the ledger sheet in a wellown manner. Pivoted to the foot pedals T is a link V to which is pivoted at V2 .a lever V.-3, which is in turn pivoted at V-4 to one legof the typewriter stand. V--5 in- P which is secured to the writing head at Q. i

dicates perforated bosses secured to the leg of the typewriter stand. V'6 indicates a rod which is freely slidable in the bosses. The lower end of the rod rests upon the outer extremity of thelink V--3 (see Fig. 3) and its upper end is adjacent the switch V7 so that when the foot pedal T is operated, the right hand end of the link V'-3 moves downwardly with it and its opposite end rises about the center 'V4 carrying the rod V6 upwardly until it contacts with the switch plate V7 and closes the circuit. The result of this is that when a ledger sheet be finished the operator depresses the pedals T in the usual manner which lowers the bed, closes the electrical circuit and causes the writing head to move from its position as shown in full lines in Fig. 1 to its position as shown in dotted lines in the same figure.

V--.-8 indicates the dash pot at the left hand side of the writing bed and rigidly secured thereto by means of a bar V9. VlO is an extension from the dash pot which is bored at V--11 so as to slidably receive a piston rod V-12 which is shouldered at AX so as to provide a bearin for a coil spring V714. The outer end of the piston rod slides through a centrally apertured washer V13 against which the outer end of the spring VM thrusts. V16 is a larger and stronger spring, one of whose ends bears against one wall of the dash pot V-8 and its opposite end bears against a plate V--17 between which and a similar plate V18 is a cup leather V-19.- The two plates V17 and ly by a spring A-2 so as to engage m anotch A3 in the piston shaft V12. The upper end of the latch A-1 is bevelled as at A4 so that when it is moved to the right, as seen in Figure 5, it contacts with the end of the pin A-5 extending from one of the walls of the dash pot V8. This contact of course forces the latch A downwardly be cause of the upper bevelled edge of the latch A-1 and releases the piston shaft V12 and allows the discs V-.17 and V18 and the on leather V19 to move to the left and refeves the head G from pressure of the heavy spring V16. From this it will be seen that the moving back of the head G in ient and is resisted only by the very light:

spring V14.

A-9-indicates a shaft which is rigidly secured to the disc V18 and slidably passes through an opening A-1O in the inner wall of the dash pot V-S. A11 indicates a lever pivoted at A-12 to the writing head G having a button A13 upon one of its ends. Its opposite end A14 projects rear-, wardly and beyond the rear wall of the writing head G. The end of the shaft A9 is normally above the p ane of movement of the terminal A-14 of the lever A13 so that when the lever is in a position as shown, the carriage moves on to its banking stop position uninterrupted by any collision between the terminal A14 and the rod A9. However, if it be desired to arrest the carriage at a different point from the banking stop point, say as indicated at twenty-five or thirty upon the scale, for example, so as to write in an item the button A]8 is depressed by the operator and the switch closed causing the motor to return the carriage until the terminal A14 contacts with the end of the rod A-9 which of course will-cause the dash pot mechanism to resist the shock, moving the rod in contra-letterfeed direction until the rod A-9 is arrested by contact with a stud A15 with the inner wall ofthe dash pot- V8. The carriage is now arrested at the pre-determined item stop point having been fully cushioned in its arrest, and the lever A11 is returned to .its inoperative position by means of a spring A16. The spring which returns the piston of the rear dash pot, as shown and described inmy said former application, is so arranged as to fully cushion the frame and head when it is drawn into its dotted line position as seen in Fig. 1,-s o that the parts will remain in that position 'so long as the usual friction mechanism of the Elliott Fisher remains in operation, but when that friction mechanism is released the power without departing from the spirit and scope I of my invention. I therefore desire to avoid being limited to the exact form of embodiment which I have herein shown and described.

What I claim as new and desire to protect by Letters Patent, is

1. The combination with a typewriting machine having awriting bed and a head movable thereon, a line finder upon the head which at all times is in register with a line above a line which is being written.

2. The combination with a typewriting machine having a writing bed and a head movable thereon, of a; line finder projecting outwardly from the head, said line finder being at all times in register with a line above 4 the line which is being written.

3. The combination with a .typewriting machine having a writing bed and head movable thereon, of a line finder projecting outwardly from the head and at a right angle thereto, said line finder being at all times in register with a line above the line which is being written.

4. The combination with a typewriting machine having a writing bed and a head movable thereon, of a line finder projecting outwardly from the head, said line finder being mounted to avoid interference with the full travel of the writing head.

5. The combination with a typewriting machine having a writing bed and writing head movable thereon, of a motor, a shell secured to the motor shaft, there being'an aperture in the shell, a flexible and extensible connection having one of its ends secured directly to the shaft of the motor passed through the aperture in the shell and its other end secured to the writing head, whereby slack in the connection is produced within the shell after a sudden arrest of the writing head. i

6. The combination with a typewriting machine having a writing bed movable with respect to its support whereby the paper is clamped in position, of a motor, a carriage movable relative to said bed by the motor, a switch, and connections between the switch and the writing bed which causes the switch to be operated when the writing bed is operated.

7. The combination with a typewriting machine including a movable carriage, a stop for arresting the carriage in its movement in contra-letterfeed direction, a second stop normally out of the path of the carriage, and means for causing a relative movement between the second stop and the carriage which causes the arresting of the carriage at a predetermined point in advance of the point indicated by the first mentioned stop, and means for absorbing the shock of the arrest at both of the points.

8. The combination with atypewritingmachine having a movable carriage, of means for absorbingtheshockofthearrestofthe carriage when it is returned in contra-letterfeed direction, said means including a cushion upon which the carriage acts when it is so returned, and which tends to move the carriage upon the recoil of the cushion against the holding action of the letterfeeding mechanism, means which releases the cushion following the impact of the carriage to thereby relieve the carriage of any force due to the recoil of the cushion.

9. The combination with a typewriting machine, including 'a movable carriage, of a yielding banking stop, including a dash pot,

a spring within the dash pot which is collapsed upon the arrest of the carriage and banking point and means which release the spring at that time so that it has free return to its normal position without affecting the carriage.

10. The combination with a typewriting machine having a movable carriage and a banking stop, of means for relieving the shock of arrest of the carriage at the banking stop, said means including a dash pot, a piston head, a spring upon which the piston head acts, a piston stem upon which the head is slidable, a latch for normally latching the head to the stem, a relatively light spring which acts to return the piston stem independently of the head and means for tripping the latch at approximately the end of the stroke of the piston stem.

11. In a shock absorber, the combination of a dash pot, a piston movable therein, a spring compressed in the movement of the piston, and means for releasing the power stored in the spring by the piston movement at a predetermined point in the compression of the spring.

12. The combination with a typewriting machine having a writing bed and head movable thereon, of a motor, a carriage movable relative 'to said bed by the motor, paper holding means, means for rendering the holding means inoperative, a switch and connections between the same and the holding means which causes the switch to be actuated when the paper holding means is actuated.

13. The combination with a typewriting machine including a movable carriage and means to hold the paper in position to be written upon, of a motor, connections between the motor and carriage to move the carriagerelative to the paper holding means when the motor is energized, a switch, and connections between the switch and the paper holding means which causes the switch to be operated whenever the paper holding means is operated to remove the paper.

14. The combination with a typewriting machine including a movable carriage and means to hold the paper in position to be written upon, of a power plant, and means for intermittently transmitting power from the power plant to the carriage, said means including a connection between the power plant and the paper holding meansserving to cause the power plant to function whenever the paper holding means is operated to remove the paper.

15. An attachment for a typewriting machine having a writing bed movable with respect to its support for clamping the paper in position, comprising a motor, a carriage movable relative to said bed by the motor, a switch, and connections between the switch and the writing bed which causes the switch to be operated when the writing bed is operated.

16. An attachment for a typewriting machine having'a movable carriage and means to hold the paper in position to be written upon, comprising a motor, connections between said motor and carriage for moving the carriage relative to the paper holding means when the motor is energized, a switch, and connections between the switch and the paper holding means which causes the switch to be operated whenever the paper holding means is operated to remove the paper.

In testimony whereof I afiix my signature.

FREDERICK P. GORIN. 

